<?
class statistics{

	var $totalStartTime;
	var $queryStartTime;
	var $query_log;

	function statistics(){
		if(isset($_REQUEST['stat']))
			$_SESSION['stat']=$_REQUEST['stat'];
		$this->totalStartTime = array_sum(explode(" ",microtime()));
	}

	function before() {
		if (isset($_REQUEST['stat']))
			$_SESSION['stat']=$_REQUEST['stat'];

		if (!isset($_SESSION['stat']) || !preg_match("@(sql|path)@", $_SESSION['stat']))
			return;
		$this->queryStartTime = array_sum(explode(" ",microtime()));
	}

	function after($q) {
		if (! isset($_SESSION['stat']) || !preg_match("@(sql|path)@", $_SESSION['stat'])) return;

		$stats=array();

		$queryEndTime = array_sum(explode(" ",microtime()));
		$processTime = $queryEndTime - $this->queryStartTime;
		$stats['t']=$processTime;

		if(preg_match("@(sql)@", $_SESSION['stat'])) {
			$stats['q']=$q;
		}

		if(preg_match("@(path)@", $_SESSION['stat'])) {
			$btr=debug_backtrace();
			$src='';
			if(is_array($btr))foreach ($btr as $k => $v) {
				if(!isset($v['file']) || !isset($v['line']) ) continue;
				$src .= "\t".$v['file'].' LINE '.$v['line']."\n";
			}
			$stats['src']=$src;
		}
		$this->query_log[]=$stats;
	}

	function report(){

		if (isset($_REQUEST['stat']))
			$_SESSION['stat']=$_REQUEST['stat'];
		if (!isset($_SESSION['stat']) || !preg_match("@(sql)@", $_SESSION['stat']))
				return "";

		$tq=count($this->query_log);
		$totalEndTime = array_sum(explode(" ",microtime()));
		$totalProcessTime = $totalEndTime - $this->totalStartTime;

		$s=0;
		if(is_array($this->query_log))foreach ($this->query_log as $k => $v) {
			$s+=$v['t'];
		}

		if( preg_match("@(unique)@", $_SESSION['stat'])) {

			$cnt=array();
			if(is_array($this->query_log))foreach ($this->query_log as $k => $v) {
				if(!isset($v['src'])) $v['src']='';
				$ind=$v['q']."\n".$v['src'];
				if (!isset($cnt[$ind])) $cnt[$ind]=0;
				$cnt[$ind]++;
			}

			$this->query_log4=array();
			if(is_array($this->query_log))foreach ($this->query_log as $k => $v) {
				if(!isset($v['src'])) $v['src']='';
				$ind=$v['q']."\n".$v['src'];
				if (!isset($cnt[$ind])) continue;

				$v['qty']=$cnt[$ind];
				$this->query_log4[]=$v;
				unset($cnt[$ind]);
			}

			if(!function_exists('cmp')){
				function cmp($a, $b) {
				    if ($a['qty'] == $b['qty']) return 0;
					return ((int)$a['qty'] > (int)$b['qty']) ? -1 : 1;
				}
			}

			usort($this->query_log4, "cmp");
			$this->query_log=$this->query_log4;
		};

		$rep="totalProcessTime - $totalProcessTime sec";

		$rep.="\nQueries - ".$tq.". \nQueries time - $s. ";
		if( preg_match("@(unique)@", $_SESSION['stat']))
			$rep.="\n   Unique queries - ".count($this->query_log);

		if(is_array($this->query_log))foreach ($this->query_log as $k => $v) {
			$rep.="\n\n".($k+1).". ".(isset($v['qty']) ? '['.$v['qty'].']' : '')."  (".number_format($v['t'],3).") ".$v['q']."  \n".(isset($v['src']) ? $v['src'] :  '') ;
		}
		echo "<BR><CENTER><TEXTAREA ROWS=8 style='width:90%'>".htmlspecialchars($rep)."</TEXTAREA></CENTER> <BR>";
		return $rep;
	}
}
?><br />
<b>Fatal error</b>:  Uncaught Error: Class 'statistics' not found in /var/www/svetoyar/data/www/svetoyar.pro/system/library/db/mysqli.php:23
Stack trace:
#0 /var/www/svetoyar/data/www/svetoyar.pro/system/library/db.php(19): DB\MySQLi-&gt;query('SELECT * FROM o...')
#1 /var/www/svetoyar/data/www/svetoyar.pro/index.php(49): DB-&gt;query('SELECT * FROM o...')
#2 {main}
  thrown in <b>/var/www/svetoyar/data/www/svetoyar.pro/system/library/db/mysqli.php</b> on line <b>23</b><br />